Are the etymology and status of hosed known, and if so, what are they? For this question, "hosed" is used as at onlineslangdictionary or at urbandictionary. (That is, with meaning broken, messed up, worn out, rather than its probably-older "put hose on" or "attached hose" past-participle meanings.)
My question about the status of the word is whether it indubitably is slang, vs. being a "proper dictionary word". I've always supposed it should be the latter, and imagined that dictionary compilers have left it out by mistake.
Note 1: as a plus, the onlineslangdictionary site tabulates votes on frequency of use and sense of vulgarity of words, and tabulates hundreds of recent tweets containing 'hosed'; perhaps as a minus, it gives a needlessly wordy definition: "utterly and undoubtedly affixiated in a troublesome situation".
Note 2: ngrams.googlelabs.com shows frequency of use of 'hosed' tripling between 1930 and 1940.
Update 1: Among answers given so far, the "police brutality [by] use of water via fire hoses" and/or "being beaten with a rubber hose" explanations seem less compelling than (i) the explanation stemming from hose as "transparent metaphor for the penis" (supported by specialised slang dictionary references) or (ii) the explanation based on SCTV / Mackenzie Brothers / Great White North reference and Wikipedia hoser entry. If it becomes more clear in a few days I'll checkmark an answer. - jiw